Source government regulation number 113 of 04/24/1936
the color purple Buttons Gold or Silver
Silver:
Assistant superintendent of prisoners 1 rosette
superintendent of prisoners in III grade 3 rosette
superintendent of prisoners in II grade 1 rosette + lace (pict. 16)
superintendent of prisoners in I grade 2 rosette + lace
Gold:
Candidate Aspirant Officer 1 rosette
Officer in VII grade 2 rosette
Officer in VI grade 3 rosette
Officer in V grade 1 rosette + lace (pict. 15)
Officer in IV grade 2 rosette + lace
Officer in III grade 3 rosette + lace
(Officer Ib class. + buton +st. symbol;
Officer II class. + buton)